我把电脑三插头的电源线改成了两插头的

2025-03-29 10:34:54
推荐回答(1个)
回答1:

三叉头的单独的那个头是接地的,例如,当出现意外,你的电器外壳带电时,这个头就将电导入三头插孔,如果三头插孔中有接地线,就将电导入地下,主要起安全作用。剩下的两个头一根零线,一根火线,电就是由他们提供。一般住宅接口都有三头插座,就是为了安全。有的住宅看似安装的三头插座,但是多出来的那个孔并没有接地,形同虚设。即时用了三头插头,也起不到作用。

按你的意思,三改二,对电脑使用没影响,但是安全性低了点,万一漏电,对电脑有损害,要不为什么别人用三头的插头。

你主要弄懂多出来的第三个头有什么用处,以下参考

单相三孔插座如何安装才正确 为什么
通常,单相用电设备,特别是移动式用电设备,都应使用三芯插头和与之配套的三孔插座。三孔插座上有专用的保护接零(地)插孔,在采用接零保护时,有人常常仅在插座底内将此孔接线桩头与引入插座内的那根零线直接相连,这是极为危险的。因为万一电源的零线断开,或者电源的火(相)线、零线接反,其外壳等金属部分也将带上与电源相同的电压,这就会导致触电。 因此,接线时专用接地插孔应与专用的保护接地线相连。采用接零保护时,接零线应从电源端专门引来,而不应就近利用引入插座的零线。

凸形阴插座三脚插头

凸形阴插座三脚插头,包括地、火、零线三个金属阴插座,设于绝缘材料构成的插头本体2的三个插座孔3中,从所述插座孔后端导出引线,所述插头本体的横截面为凸字形阶梯结构;所述插座孔3布置为上部一个,下部左、右各一个,在插头本体后端设突缘1,用陶瓷制成。本实用新型采用的凸形阶梯结构相比于现有技术利于插座的散热,延长了使用寿命。所述插座的所述突缘可方便插拔。所述插座采用陶瓷材料制造,耐热,防漏电,保障使用者的安全。

漏电保护插头

漏电保护插头 概述 “漏电保护插头”也称为“剩余电流保护插头”。当电器漏电时,在电气回路中,必然会有一部分电流不是从火线经中线流回变压器,而是经地线或人体等“导电体”流入大地,构成主电路以外的一个“支流”,就是我们平时所说的“漏电”。当这部分电流经人体流入大地时候,就造成人触电。“漏电保护插头”的作用是当该插头所接的电器,如果出现漏电时,在漏电流还未达到伤害人体的电流量之前就自动将电源切断,保护人身安全。 工作原理 漏电保护插头就是检测“地线”回路中的“剩余电流”。其工作原理是将插头的二根电源线(火线与中线)同时穿入一个特制的“零序电流互感器”中心孔中,当电器正常用电时,火线与中线中流过的电流是完全相等的,电流一进一出,电流互感器二次线圈无电压输出。当“地线回路”(包括大地回路)中有“剩余电流”时 , 穿入互感器的二根电源线电流不平衡,在“电流互感器”的输出端会产生与电流成比例的电压信号,只要电压信号足够大时,这个电压信号经专用线路板的集成电路放大等处理后,将触发板上的可控硅从截止转变到导通,使串接在该回路跳闸线圈通电,从而使主回路脱扣装置断开,保护可能与电源接触的人身安全。

还可参考http://baike.baidu.com/view/45235.html

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